/*
 * $Header:
 * /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons
 * //httpclient
 * /src/java/org/apache/commons/httpclient/methods/multipart/ByteArrayPartSource
 * .java,v 1.7 2004/04/18 23:51:37 jsdever Exp $ $Revision: 480424 $ $Date:
 * 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
 *
 * ====================================================================
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many individuals on
 * behalf of the Apache Software Foundation. For more information on the Apache
 * Software Foundation, please see <http://www.apache.org/>.
 */

package com.microsoft.tfs.core.httpclient.methods.multipart;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * A PartSource that reads from a byte array. This class should be used when the
 * data to post is already loaded into memory.
 *
 * @author <a href="mailto:becke@u.washington.edu">Michael Becke</a>
 *
 * @since 2.0
 */
public class ByteArrayPartSource implements PartSource {

    /** Name of the source file. */
    private final String fileName;

    /** Byte array of the source file. */
    private final byte[] bytes;

    /**
     * Constructor for ByteArrayPartSource.
     *
     * @param fileName
     *        the name of the file these bytes represent
     * @param bytes
     *        the content of this part
     */
    public ByteArrayPartSource(final String fileName, final byte[] bytes) {

        this.fileName = fileName;
        this.bytes = bytes;

    }

    /**
     * @see PartSource#getLength()
     */
    @Override
    public long getLength() {
        return bytes.length;
    }

    /**
     * @see PartSource#getFileName()
     */
    @Override
    public String getFileName() {
        return fileName;
    }

    /**
     * @see PartSource#createInputStream()
     */
    @Override
    public InputStream createInputStream() throws IOException {
        return new ByteArrayInputStream(bytes);
    }

}
